Description
LAUNCH • X-431 GIII advanced immobilizer & key programmer X-PROG 3
LAUNCH X-431 GIII X-PROG 3 is a complex, professional-level immobilizer and key programming module designed for automotive repair shops. Made for use with LAUNCH’s X-431 diagnostic tablets, it enables reading and writing EEPROM, on-board MCUs, BMW CAS4+/FEM chips, and Mercedes-Benz infrared keys without disassembling the ECU. It is ideal for brands like VW, Audi, Skoda, Seat, BMW, Mercedes-Benz, Toyota, and more with growing support for additional manufacturers. Equipped to handle systems including automatic transmission, instrument panels, body, locking, and CAS systems, this unit supports engine ECU replacement or cloning on VW/AUDI MQB platforms, resetting passwords, and reading ISN codes. It is intended for trained professionals familiar with vehicle electronics and anti-theft systems.
Key benefits
- Supports reading/writing of EEPROM, MCU, BMW CAS4+/FEM chips, and Mercedes infrared keys without shell removal
- Enables engine ECU and transmission ECU cloning and replacement for VW/AUDI MQB and 5th-generation gearboxes
- Includes anti-theft features: remote control matching, password reading, key chip programming, key simulator functions, ISN code reading
- Wide compatibility with X-431 series diagnostic devices: V, V+, Pro V4.0, PRO 3 V4.0, PRO5, PAD III, PAD V, PAD VII, PRO3S+, and more
- Interfaces DB15 and DB26, works at 12 V DC, consumes 5 W, operates in 0–50 °C environment, storage -20–70 °C
- Regular updates expanding support for Siemens engines (e.g. MSD80-MSV90), transmissions like 9G-Tronic, AL551, AL450, and 8HP series
Supported protocols
- EEPROM read/write protocols
- MCU read/write protocols
- CAN bus, UDS protocol
- Infrared key signal protocols (Mercedes-Benz)
Supported functions
Depending on vehicle compatibility the following functions are supported:
- Key matching and all-keys-lost programming
- Anti-theft IC reading and writing
- Engine ISN code reading
- ECU and gearbox replacement or cloning
- Password reading and resetting for anti-theft systems
- Reading and writing CAS/FEM modules
Included items
- 1 × X-PROG 3 main programming unit
- 1 × power adaptor (12 V DC, 3 A)
- 1 × main diagnostic cable (OBD 16-pin to D-Sub HD15)
- 1 × INS cable gen-4 (dashboard removed mode)
- 1 × EEPROM data acquisition cable gen-4 (without removing dashboard)
- 1 × bench-mode cable
- 1 × MCU converter V1
- 1 × MCU converter V2
- 1 × EEPROM 2×4 SOP8 chip adapter
- 1 × EEPROM converter (solder-type)
- 1 × Mercedes-Benz infrared simulation key (MN Key V1)
- 1 × MCU cable with open leads
- 1 × banana plug test leads
- 1 × user manual









Reviews
There are no reviews yet.